Noninvasive continuous monitor of arterial blood pressure waveform
First Claim
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1. A method of continuously, noninvasively measuring blood pressure, said method comprising the steps of:
- noninvasively determining at least discrete systolic and diastolic blood pressure values;
simultaneously, noninvasively monitoring the patient with a waveform signal means to generate a sample continuous non-pressure waveform signal;
inputting said discrete systolic and diastolic blood pressure values and said sample continuous non-pressure waveform signal to a microprocessor;
calculating at least systolic and diastolic points for said sample continuous non-pressure waveform signal;
calibrating said systolic and diastolic points with said systolic and diastolic blood pressure values, respectively, and storing said calibrated information;
continuously, noninvasively monitoring said patient with said waveform signal means to generate a continuous non-pressure waveform signal;
using said calibrated information to transform said continuous non-pressure waveform signal into a continuous blood pressure waveform.
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Abstract
A method, and a device utilizing that method, for continuously, noninvasively measuring a patient'"'"'s blood pressure. Discrete values of systolic and diastolic blood pressure are noninvasively determined and input to a microprocessor. A continuous non-pressure waveform signal is generated through noninvasive monitoring of the patient and is also input to the microprocessor. The microprocessor calibrates the continuous non-pressure waveform signal using the discrete blood pressure values, thereby generating a continuous waveform signal of blood pressure.
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Citations
28 Claims
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1. A method of continuously, noninvasively measuring blood pressure, said method comprising the steps of:
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noninvasively determining at least discrete systolic and diastolic blood pressure values; simultaneously, noninvasively monitoring the patient with a waveform signal means to generate a sample continuous non-pressure waveform signal; inputting said discrete systolic and diastolic blood pressure values and said sample continuous non-pressure waveform signal to a microprocessor; calculating at least systolic and diastolic points for said sample continuous non-pressure waveform signal; calibrating said systolic and diastolic points with said systolic and diastolic blood pressure values, respectively, and storing said calibrated information; continuously, noninvasively monitoring said patient with said waveform signal means to generate a continuous non-pressure waveform signal; using said calibrated information to transform said continuous non-pressure waveform signal into a continuous blood pressure waveform. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 20)
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15. A device for continuously, noninvasively measuring blood pressure, said device comprising:
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a pressure signal means for noninvasively determining at least discrete systolic and diastolic blood pressure values for a patient; a waveform signal means for noninvasively monitoring said patient to generate a continuous non-pressure waveform signal; and microprocessing means for receiving at least said discrete systolic and diastolic blood pressure values and said continuous non-pressure waveform signal as inputs, said continuous non-pressure waveform signal being calibrated using at least said discrete systolic and diastolic blood pressure values to generate a continuous waveform signal of blood pressure. - View Dependent Claims (16, 17, 18, 19, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification